Machine for operating on lasted boots and shoes



Oct. 28,} 1924- 1,513,002

A. M. PICKEN MACHINE FOR OPERATING ON LASTED BOOTS AND SHOES Filed July 16. 1920 2 Sheets-Sheet 1 FIG. I.

Oct. 28 1924.

A. M. PICKEN MACHINE FOR OPERATING ON LASTED BOOTS AND SHOES 2 Sheets-heet 2 Filed July 16 1920 wm/vroe.

A\Freol M. PicKen bwmw Mam Afiys Patented Oct. 28, 1924.

UNITED STATES ALFRED MATTHIAS PIGKEN, OF RUSHDEN, ENGLAND.

MACHINE FOR OPERATING 0N LASTED BOOTS AND SHOES.

Application filed July 16, 1920. Serial No. 396,639.

To all whom it may concern:

Be it known that I, ALFRED MATTHIAs PIOKEN, a subject ofthe King of Great Britain, residing at Rushden, Northamptonshire, England, have invented a new and useful Machine for Operating on Lasted Boots and Shoes, of which the following is a specification.

My invention relates to improvements in machines for operating on lasted boots and shoes to prepare these for the subsequent welt-stitching operation.

It has heretofore been customary to subject lasted boots and shoes to the operation of two machines to prepare them for the welt-stitching operation. The first of these is known as a channel opener and the other as a rough upper trimmer.

My invention comprises a machine in which both these operations are effected simultaneously and in which the channel opener is constructed and mounted so as to be adjustable relativelyto the cutters that are to trim the uneven projecting edge of the lasted upper so that said channel opener also serves as an adjustable depth gauge that will determine the depth of the trimmed upstanding edge of the upper.

' My invention is illustrated in the accompanying drawing in which:

Fig. 1 is a front elevation showing the mechanism for imparting movement to the cutter spindles, the cover of the casing that contains the said mechanism being removed.

Fig. 2 is a side elevation of the complete machine.

In said drawing A indicates the head of the machine which is supported in any suitable manner for example it may have a stem B that is nipped in the upper end of a standard C so that the head is adjustable as to height to suit any particular workman.

The head is provided with two vertical bearings D, E, for the reception of spindles cl, e. The spindles d has at its upper end a wormwheel W with which a worm w, on the driving shaft F, gears. On the driving shaft are the usual fast and loose pulleys G, H, and the head A may carry the belt shifter h.

The lower ends of the spindles d, e, carry disc cutters I, J, respectively of which the latter will be of such sufficiently small diameter as to adapt it for trimming the upstanding edge of the upper at the toe portion of the last, the said cutter being located within the marginal upstanding edge of the upper whilst the trimming of the latter is being effected. The other cutter I need not be of the same small diameter, but whether it be so or not it is necessary to drive the cutters so that they rotate at substantially the same peripheral speed whilst trimming the edge of the upper. This is effected in a simple manner by providing the spindles (Z, c, with gear wheels 2', j, respectively, which gear together and have. a diameter respectively which is proportionate tothe diameter of the relative cutter. The cutter I is serrated so as to act as a feed.

The spindles project well below the lower face of the head A so as to leave ample space for the upstanding edge of the upper.

Carried by and coaxially with the spindle e is a channel opener L, which, as shown, is in the form approximately of a truncated cone havin its peripheral edge at the base rounded o The said opener is of a depth so that when its rounded edge is inthe bottom of the channel--the axis of rotation of the opener being then located on one side thereo-fthe upstanding edge portion of the upper will be trimmed off at a minimum distance from the bottom of the last. The channel opener is carried so as to be adj ustable to enable the distance from the bottom of the last at which the upper is trimmed to be increased. In the example illustrated the channel opener is formed or provided with a screwed spindle Z that enters a screw threaded aperture in the spindle e, the bottom of the opener having a slot so that it can be set up or down by means of an ordinary screw driver. The channel opener L also functions as a gauge to determine how much of the edge of the upper shall be trimmed off, that is, to determine the depth to which the edge of the upper shall be trimmed. This result is secured by reason of the axial adjustment of the spindle Z as above described.

When the upper is being trimmed the frictional engagement of the channel opener with the work will effect or at least very materially assist in the feeding forward of the work.

Having now described my invention I claim:

1. In a machine for operating on lasted boots and shoes to prepare them for the welt-sewing operation, the combination with rotary cutters for trimming the edge of the upper, of means carried by one of the Gutte rs for simultaneously opening the channel on the sole of the shoe.

2. In a machine of the class described, the

combination with a pair of disk cutters to trim the edge of the upper of a laSted boot or shoe, of a channel opener carried by one ofthe cutters co-axially thereof and adapted to act on the channel thereby to open it simultaneously with the trimming of the upper.

'3. In a machine of the class described, the combination with a pair of disk cutters to trim the edge of the upper of a lasted boot or shoe, or means for rotating said cutters, and av channel-opening tool rigidly carried by and rotating with one of the cutters coaXially thereof, said tool having the shape of a truncated cone with the portion of larger diameter at its lower end.

4:. In a machine of the class described, the combination with a pair of disk cutters to trim the edge of the upper of a lasted boot or shoe, of means for rotating said cutters, and a channel-opening tool rigidly carried by and rotating with one of the cutters coaxially thereof, said tool having a progressively-decreasing diameter from its lower end upwardly.

5. In a machine for operating on lasted boots and shoes to prepare them for the welt-sewing operation, the combination with a pair of disc cutters to trim the upstanding edge of the lasted upper, of adjustable means i to determine the depth of the upstanding trimmed edge of the upper.

6. In a machine for operating on lasted boots and shoes to prepare them for the weltsewing operation, the combination with a pair of disc cutters to trim the upstanding edge of the lasted upper, of an adjustable depth gauge that operates in the channel to open the latter.

7. In a machine for operating on lasted boots and shoes to prepare them for the Waltsewing operation, the combination with a pair of disc cutters, one of which serves to feed forward the work as the trimming operation is proceeding, of an adjustable combined depth gauge and channel opener.

8. In a machine for operating on lasted boots and shoes to prepare them for the weltsewing operation, the combination with a pair of disc cutters to trim the upstanding edge of the lasted upper, of a channel opener that is adjustable according to the depth from the face of the insole at which the upper is to be trimmed.

9. In a machine for operating on lasted boots and shoes to prepare them for the weltsewing operation, the combination with a 'pair of disc cutters totrim the upstanding edge of the lasted upper, of a combined depth gauge and channel opener that is carried by one of the cutters co-axially thereof and is adjustable with respect to said cutter.

ALFRED BIATTHIAS PIOKEN. IVitnesses CHARLES BAUM,

JESSIE CORDELIA MATTHEWS. 

